Speaking to The Cut, Arabella Preston, Kate's makeup artist and a former beauty editor, says that the key to achieving perfect skin is using a facecloth.
Yep, that bacteria-filled cloth you avoid in favour of your just-washed-and-sparkly-clean hands, is to thank for the Duchess' pimple-free face.
"More gentle than any moisturised cleanser brush, the right flannel will allow you to cleanly wipe makeup and dirt from your skin and gently exfoliate."
"Surrounding your face with a steaming hot towel adds a cosy, therapeutic element to the routine and leaves you with skin that’s naked but not stripped."
This article originally appeared on Marie Clare.